mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

use RT signal for /dev/rtc - restore stdin flags (Bob Barry) - cpu save fix (Johannes Schindelin)

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@970 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-06-25 14:46:23 +00:00
parent 107db44327
commit 02ba45c536
1 changed files with 38 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
vl.c
View File

@ -787,6 +787,35 @@ void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
static void host_alarm_handler(int host_signum) static void host_alarm_handler(int host_signum)
#endif #endif
{ {
#if 0
#define DISP_FREQ 1000
{
static int64_t delta_min = INT64_MAX;
static int64_t delta_max, delta_cum, last_clock, delta, ti;
static int count;
ti = qemu_get_clock(vm_clock);
if (last_clock != 0) {
delta = ti - last_clock;
if (delta < delta_min)
delta_min = delta;
if (delta > delta_max)
delta_max = delta;
delta_cum += delta;
if (++count == DISP_FREQ) {
printf("timer: min=%lld us max=%lld us avg=%lld us avg_freq=%0.3f Hz\n",
muldiv64(delta_min, 1000000, ticks_per_sec),
muldiv64(delta_max, 1000000, ticks_per_sec),
muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
(double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
count = 0;
delta_min = INT64_MAX;
delta_max = 0;
delta_cum = 0;
}
}
last_clock = ti;
}
#endif
if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL], if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
qemu_get_clock(vm_clock)) || qemu_get_clock(vm_clock)) ||
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
@ -892,7 +921,8 @@ static void init_timers(void)
setitimer(ITIMER_REAL, &itv, NULL); setitimer(ITIMER_REAL, &itv, NULL);
/* use the RTC */ /* use the RTC */
sigaction(SIGIO, &act, NULL); sigaction(SIGRTMIN, &act, NULL);
fcntl(rtc_fd, F_SETSIG, SIGRTMIN);
fcntl(rtc_fd, F_SETFL, O_ASYNC); fcntl(rtc_fd, F_SETFL, O_ASYNC);
fcntl(rtc_fd, F_SETOWN, getpid()); fcntl(rtc_fd, F_SETOWN, getpid());
} else { } else {
@ -1184,10 +1214,12 @@ static void term_init(void)
/* init terminal so that we can grab keys */ /* init terminal so that we can grab keys */
static struct termios oldtty; static struct termios oldtty;
static int old_fd0_flags;
static void term_exit(void) static void term_exit(void)
{ {
tcsetattr (0, TCSANOW, &oldtty); tcsetattr (0, TCSANOW, &oldtty);
fcntl(0, F_SETFL, old_fd0_flags);
} }
static void term_init(void) static void term_init(void)
@ -1196,6 +1228,7 @@ static void term_init(void)
tcgetattr (0, &tty); tcgetattr (0, &tty);
oldtty = tty; oldtty = tty;
old_fd0_flags = fcntl(0, F_GETFL);
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|INLCR|IGNCR|ICRNL|IXON); |INLCR|IGNCR|ICRNL|IXON);
@ -1570,6 +1603,7 @@ int qemu_loadvm(const char *filename)
static void cpu_put_seg(QEMUFile *f, SegmentCache *dt) static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
{ {
qemu_put_be32(f, dt->selector);
qemu_put_be32(f, (uint32_t)dt->base); qemu_put_be32(f, (uint32_t)dt->base);
qemu_put_be32(f, dt->limit); qemu_put_be32(f, dt->limit);
qemu_put_be32(f, dt->flags); qemu_put_be32(f, dt->flags);
@ -1577,6 +1611,7 @@ static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
static void cpu_get_seg(QEMUFile *f, SegmentCache *dt) static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
{ {
dt->selector = qemu_get_be32(f);
dt->base = (uint8_t *)qemu_get_be32(f); dt->base = (uint8_t *)qemu_get_be32(f);
dt->limit = qemu_get_be32(f); dt->limit = qemu_get_be32(f);
dt->flags = qemu_get_be32(f); dt->flags = qemu_get_be32(f);
@ -1650,7 +1685,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
uint32_t hflags; uint32_t hflags;
uint16_t fpus, fpuc, fptag; uint16_t fpus, fpuc, fptag;
if (version_id != 1) if (version_id != 2)
return -EINVAL; return -EINVAL;
for(i = 0; i < 8; i++) for(i = 0; i < 8; i++)
qemu_get_be32s(f, &env->regs[i]); qemu_get_be32s(f, &env->regs[i]);
@ -2683,7 +2718,7 @@ int main(int argc, char **argv)
cpu_single_env = env; cpu_single_env = env;
register_savevm("timer", 0, 1, timer_save, timer_load, env); register_savevm("timer", 0, 1, timer_save, timer_load, env);
register_savevm("cpu", 0, 1, cpu_save, cpu_load, env); register_savevm("cpu", 0, 2, cpu_save, cpu_load, env);
register_savevm("ram", 0, 1, ram_save, ram_load, NULL); register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
qemu_register_reset(main_cpu_reset, global_env); qemu_register_reset(main_cpu_reset, global_env);